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Finding the Fourth Proportional to 86,530.64, 119,412.20 and 48,804.89

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Solution

The fourth proportional to 86,530.64, 119,412.20 and 48,804.89 is: 67,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,530.64 : 119,412.20 = 48,804.89 : x
  2. Step 2: Convert to fraction form
    86,530.64/119,412.20 = 48,804.89/x
  3. Step 3: Cross multiply
    86,530.64x = 119,412.20 × 48,804.89
  4. Step 4: Simplify right side
    86,530.64x = 5,827,898,444.57
  5. Step 5: Solve for x
    x = 5,827,898,444.57/86,530.64
  6. Step 6: Final answer
    x = 67,350.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.